Consider this argument: Ax Ey Fxy / Ey Ax Fxy You can prove

Last updated: 7/31/2022

Consider this argument: Ax Ey Fxy / Ey Ax Fxy You can prove it's invalid by finding a domain and a predicate F for which the premise is true and the conclusion is false. We choose the domain (of discourse) to be the natural numbers (0, 1, 2, ...). Which of the following definitions of F would show the argument is invalid? Fxy x != y None Both Fxy x <= y